Biology Cell Membrane/Transport

Front

What is the main difference between passive and active transport?

Back

Active transport uses energy; passive transport does not.

Front

What does 'bilayer' refer to in the context of cell membranes?

Back

Bilayer refers to two layers.

Front

What does a cell require to perform active transport?

Back

A cell needs energy to perform active transport.

Front

What is embedded in the phospholipid bilayer of a cell membrane?

Back

Proteins are embedded in the phospholipid bilayer.

Front

True or False: Regulating what enters and leaves the cell helps maintain homeostasis.

Back

True.

Front

Define passive transport.

Back

Passive transport is the movement of substances across a cell membrane without the use of energy.

Front

Define active transport.

Back

Active transport is the movement of substances against their concentration gradient, requiring energy.

Front

What is the role of proteins in the cell membrane?

Back

Proteins facilitate transport and communication across the cell membrane.

Front

What is homeostasis in the context of cells?

Back

Homeostasis is the ability of a cell to maintain a stable internal environment.

Front

What is diffusion?

Back

Diffusion is the passive movement of molecules from an area of higher concentration to an area of lower concentration.